A black screen usually means either your display isn't getting power, your graphics card isn't sending a signal, or your operating system has crashed

A completely black screen with no light, no cursor, and no response to keyboard presses is different from a screen that's straightforward locked or in sleep mode. Before you assume hardware failure, you need to rule out the most common causes: a loose cable, a monitor that's turned off, a graphics driver problem, or a Windows or Mac crash that looks like a shutdown.

The fastest way forward is to check the physical connections first, then test whether your computer is actually running, then move to software fixes. Most black screens resolve in under five minutes once you know what to look for.

Key Takeaways

  • Check that your monitor power cable is plugged in and the monitor itself is switched on—this solves roughly one in three black screen reports.
  • Listen and feel for signs your computer is running: fan noise, hard drive activity, or a lit power button tell you the machine is on even if the screen is dark.
  • Disconnect and reconnect your display cable (HDMI, DisplayPort, or VGA) at both the monitor and computer end, as loose connections are the second most common cause.
  • If your computer is running but the screen stays black, restart it by holding the power button for 10 seconds, then power it back on.
  • On Windows, a black screen with a cursor usually means a graphics driver crashed and can often be fixed by restarting in Safe Mode.

Check Your Monitor Power and Cables First

Before troubleshooting your computer, confirm your monitor is actually on. Look for a small light on the monitor's bezel—usually green when powered, amber or off when in standby. Press the monitor's power button. If there's still no light, check that the power cable is firmly plugged into both the back of the monitor and the wall outlet or power strip.

Next, inspect the cable connecting your monitor to your computer. This is typically HDMI (a flat rectangular connector), DisplayPort (smaller and rectangular), or VGA (a blue connector with three rows of holes). Unplug this cable from both ends and plug it back in firmly. A cable that looks connected but is only partially seated is one of the most common causes of a black screen. If you have a second monitor or TV with the same cable type, try connecting that instead to rule out a faulty cable.

Confirm Your Computer Is Actually Running

A black screen can mean your computer never started at all. Listen for fan noise coming from the computer tower or laptop. Feel the back or side of the machine—is it warm? Look at the power button: does it have a light, and is that light on? On most laptops, the power light is on the button itself or near the keyboard. On desktop towers, it's usually on the front panel.

If you hear nothing, feel no warmth, and see no lights, your computer is off. Press and hold the power button for two to three seconds—you should hear the fans spin up and see lights come on. If nothing happens, the power cable to your computer may be loose. Check that the cable is plugged into the back of the tower or the power adapter (on a laptop) and that the other end is in a working outlet. Plug a lamp into the same outlet to confirm the outlet itself has power.

Force a Restart When the Computer Is Running but Screen Is Black

If your computer is running (you can hear fans or feel warmth) but the screen stays black, the operating system may have crashed or frozen. Hold down the power button for 10 full seconds without releasing. The computer will shut down. Wait 30 seconds, then press the power button once to turn it back on. This forces a restart and clears most software crashes that cause black screens.

During the restart, watch for signs of life: a logo appearing, text scrolling, or the screen lighting up even briefly. If the screen comes back to life, let the computer finish booting—this can take two to three minutes on the first restart after a crash. If the screen stays black throughout the entire boot process, move to the next step.

Restart in Safe Mode on Windows

If restarting didn't work, try booting into Safe Mode, which loads only essential drivers and can bypass a graphics driver crash. With the computer off, press the power button. As soon as you see any logo or text appear, begin tapping the F8 key repeatedly (about once per second) until a menu appears. On newer Windows machines, this may not work; instead, restart the computer, and as soon as it powers on, hold down the Shift key and press Ctrl+Alt+Delete, then select "Restart". Release Shift after the restart begins.

Once in Safe Mode, you'll see "Safe Mode" in the corners of the screen and a much lower resolution. If the screen appears here, your graphics driver is likely the problem. Restart the computer normally (it will boot back to Safe Mode again unless you change the setting). Once in Safe Mode, right-click the Start button, select "Device Manager", find "Display adapters", right-click your graphics card, and select "Uninstall device". Restart the computer. Windows will reinstall a basic graphics driver, which usually restores the display. You can then read the latest driver from your graphics card manufacturer's website (NVIDIA, AMD, or Intel).

Check for Hardware Failures

If the screen stays black even after restarting, Safe Mode doesn't appear, and you've confirmed the monitor and cables are working, a hardware component may have failed. The most common culprits are a failed graphics card, a failed monitor, or a failed motherboard. On a laptop, this usually means a trip to a repair shop. On a desktop, you can try removing and reseating the graphics card if you have one: power off the computer, unplug it, open the side panel, locate the card (a long board plugged into the motherboard), press the clips on both ends, pull it straight out, wait 30 seconds, and push it firmly back in until you hear a click.

If you don't have a dedicated graphics card, or reseating it doesn't help, the issue is likely with the motherboard or monitor itself. Test your monitor on another computer if possible. If the monitor works elsewhere, the problem is your computer's video output. If the monitor stays black on another computer too, the monitor has failed and needs replacement.

What to Do If You See a Cursor or Text

A black screen with a white cursor visible is not a complete black screen—it means your graphics are partially working. This usually indicates a Windows crash or a startup problem. Try typing your password (if you have one set) and pressing Enter, in case the login screen is present but not displaying. If nothing happens, restart by holding the power button for 10 seconds.

If you see white text on a black background, your computer is likely running a diagnostic or showing an error message. Read what it says and note any error codes. These messages usually tell you what to do next—for example, "Press any key to continue" or "Insert Windows installation media". Follow the on-screen instructions. If the text is too small to read or you're unsure what it means, take a photo with your phone and search for the error code online.

Frequently Asked Questions

Why is my screen black but my computer is on?

The most common causes are a loose display cable, a monitor that's in sleep mode or turned off, or a graphics driver crash. Start by checking that your monitor is powered on and that the cable connecting it to your computer is firmly seated at both ends. If the monitor is on and the cable is tight, restart your computer by holding the power button for 10 seconds.

Can a black screen mean my hard drive failed?

A failed hard drive usually doesn't cause a black screen—it causes the computer to fail to start or to show an error message. A completely black screen with no text or cursor almost always points to a display or graphics issue, not storage. If you're hearing clicking or beeping sounds from inside the computer, that's a sign of hard drive trouble, but the screen would typically show an error first.

What if my laptop screen is black but I can see the keyboard backlight?

If the keyboard lights up but the screen stays black, the graphics card or display cable may have failed, or the screen itself may be damaged. Try connecting an external monitor via HDMI or USB-C to see if the laptop can send a signal to another display. If an external monitor works, your laptop's built-in screen has likely failed and needs professional repair.

Is a black screen the same as a blue screen of death?

No. A blue screen of death (BSOD) shows white text on a blue background and indicates a critical Windows error. A completely black screen with nothing visible usually points to a display or graphics problem. A BSOD is a software crash; a black screen is usually hardware or a driver issue.

Should I force restart my computer if the screen is black?

Yes, if the screen has been black for more than a few minutes and you've confirmed the monitor is on and the cables are connected. A force restart (holding the power button for 10 seconds) is safe and often fixes crashes. Avoid doing this repeatedly—if the black screen returns after every restart, the problem is likely hardware and needs diagnosis.